Florida has repealed their statutes EFFECTIVE JULY 2012 ,though that does not eliminate OSHA standards which require that air tests be performed semi-annually
TITLE 29--LABOR
CHAPTER XVII--OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT
OF LABOR
PART 1910--OCCUPATIONAL SAFETY AND HEALTH STANDARDS--Table of Contents
Subpart T--Commercial Diving Operations
Sec. 1910.430 Equipment.
(a) General. (1) All employers shall comply with the following
requirements, unless otherwise specified.
(2) Each equipment modification, repair, test, calibration or
maintenance service shall be recorded by means of a tagging or logging
system, and include the date and nature of work performed, and the name
or initials of the person performing the work.
(b) Air compressor system. (1) Compressors used to supply air to the
diver shall be equipped with a volume tank with a check valve on the
inlet side, a pressure gauge, a relief valve, and a drain valve.
(2) Air compressor intakes shall be located away from areas
containing exhaust or other contaminants.
(3) Respirable air supplied to a diver shall not contain:
(i) A level of carbon monoxide (CO) greater than 20 p/m;
(ii) A level of carbon dioxide (CO2) greater than 1,000
p/m;
(iii) A level of oil mist greater than 5 milligrams per cubic meter;
or
(iv) A noxious or pronounced odor.
(4) The output of air compressor systems shall be tested for air
purity every 6 months by means of samples taken at the connection to the
distribution system, except that non-oil lubricated compressors need not
be tested for oil mist.